Oh Dlily, my Kodiak was the same way!!!
It didn't matter what I was wearing (although he was worse when I wore my wool lined winter coat,
then I really was his sheep!), he would gaze at me with that herding eye, start runing around me in circles nipping and barking and wouldn't let me move. Then he would jump up at my face, back, and chest nipping at me and barking. He got to the point where his nips started to hurt really bad and would leave bruises on my skin.
I understand exactly how you must feel and how irritating and scary it can be. I was told to grab him by the collar and force him into a down. It didn't work AT ALL, it only made him more frustrated and I hated forcing him into a position. I tried turning my back to him and squealing like I saw on It's Me Or The Dog but it only made Kodi more intense. So I started reading and brainstroming and here's what worked for us.
Method #1: If he so much as gave me that herding eye (which I'm sure you've probably come to see from Rory) I calmly turned my back to him and walked out of the fence leaving Kodi alone in the fence. Kodi was really fast and on me constantly so I kind of had to walk really fast lol. Then I would stand outside the fence and wait for him to calm down. Sometimes he wouldn't calm down if he could still see me so I'd hide behind my dad's van and peek around it at him lol. Once he was calm and not riled up or barking I would go back into the fence and ignore Kodi if he was begging for attention and wait until he offered a sit before I treated and praised him. (Kodi gets really hyper if I give him to much affection so I would just give him a few pats on the head during this).
Method #2: Sometimes Kodi would climb at the fence when I would leave him like in method #1 and I always worried that he would try to jump the fence. So I took a twenty foot leash, tied it to a tree in the fence and everytime Kodi would try to herd me, I would calmly grab his collar, walk him to the leash, tie him up and walk a few feet away from him. I'd give him a few minutes to calm down then I'd walk up to him. If he tried to jump and nip, I'd walk back to my spot. If he stayed sitting calmly I'd give him a ton of treats and praise!!!
One of the thing's I was wondering is if Rory is neutered? I found with Kodi that his herding behavior intensified as he got older and turned into more of a herding/mounting thing (which is soooo beyond embarassing, especially when kids walk past your house on their way home from school and see.....
that. It was mortifying!!!
). So we made an appointment and after he was neutered it was like he was a different dog! Sometimes he does give me the herding eye, but now all I have to do is say a sharp firm, "No" or "Hey" and he'll stop what he's doing and sit calmly for a game of fetch.
Sorry for the insanely long post lol. Hope this helps.